Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
6953 Davepierce (1986 PC1)
Classification: Main-belt Asteroid          SPK-ID: 2006953
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1758346963586709 3.3913e-08  
a 3.118298188500476 1.54e-08 au
q 2.569993173369701 1.0488e-07 au
i 1.747779786723516 4.842e-06 deg
node 157.326905759714 0.00010492 deg
peri 131.765358397879 0.00010579 deg
M 5.327022784981402 1.2256e-05 deg
tp 2458570.738354175269
(2019-Mar-28.23835418)
6.8512e-05 TDB
period 2011.290908518313
5.51
1.4899e-05
4.079e-08
d
yr
n .1789895228359613 1.3259e-09 deg/d
Q 3.666603203631251 1.8108e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2318  
   data-arc span      25143 days (68.84 yr)  
   first obs. used      1951-02-04  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46824  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 22:18:49  

Additional Information
 Earth MOID = 1.55345 au 
 Jupiter MOID = 1.51637 au 
 T_jup = 3.192 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8   n/a MPO502219  
diameter diameter 15.849 km 0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6953 Davepierce           Discovered 1986 Aug. 1 by E. F. Helin at Palomar.
David A. Pierce (b. 1936) has developed and taught college-level astronomy and physics courses for classroom, television and online distribution. He also directed gifted high-school students in observing and computing orbits for minor planets in the Summer Science Program at the Thacher School in Ojai.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020128/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1986 PC1 = 1975 RK1 = 1985 GH = 1990 EU5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-24 11:03 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin